scholarly journals Lithium-Based Upconversion Nanoparticles for High Performance Perovskite Solar Cells

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2909
Author(s):  
Masfer Alkahtani ◽  
Anas Ali Almuqhim ◽  
Hussam Qasem ◽  
Najla Alsofyani ◽  
Anfal Alfahd ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Fill Factor ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Upconversion Nanoparticles ◽  
Lithium Ions ◽  
Energy Applications ◽  
Higher Power

In this work, we report an easy, efficient method to synthesize high quality lithium-based upconversion nanoparticles (UCNPs) which combine two promising materials (UCNPs and lithium ions) known to enhance the photovoltaic performance of perovskite solar cells (PSCs). Incorporating the synthesized YLiF4:Yb,Er nanoparticles into the mesoporous layer of the PSCs cells, at a certain doping level, demonstrated a higher power conversion efficiency (PCE) of 19%, additional photocurrent, and a better fill factor (FF) of 82% in comparison to undoped PSCs (PCE = ~16.5%; FF = 71%). The reported results open a new avenue toward efficient PSCs for renewable energy applications.

A methylammonium iodide healing method for CH3NH3PbI3 perovskite solar cells with high fill factor over 80%

2021 ◽  
Vol 42 (11) ◽  
pp. 112202
Author(s):  
Zhen Li ◽  
Guanjun Yang
Keyword(s):  
Heat Treatment ◽  
Thermal Decomposition ◽  
Solar Cells ◽  
Fill Factor ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Photoluminescence Intensity ◽  
High Quality ◽  
High Fill Factor

Abstract Repressing the thermal decomposition during the process of heat treatment plays an indispensable part in the preparation of perovskite films. Here, a methylammonium iodide healing method was applied to prevent the volatilization of the organic component inside the perovskite structure during the heat treatment. High-quality CH3NH3PbI3 film with a much larger grain size over 800 nm was successfully fabricated via this healing method. Besides, the absorption and photoluminescence intensity were also both improved. Finally, the best power conversion efficiency of 18.89% with a fill factor over 80% was realized in an n–i–p configuration while possessing outstanding stability. This work suggests that methylammonium iodide healing method is a reliable way to promote crystal growth and improve the photovoltaic performance and humidity stability of the CH3NH3PbI3 solar cells.

Flexible ITO films with atomically flat surfaces for high performance flexible perovskite solar cells

Nanoscale ◽  
2018 ◽  
Vol 10 (44) ◽  
pp. 20587-20598 ◽  
Author(s):  
Jae-Ho Kim ◽  
Hae-Jun Seok ◽  
Hyeong-Jin Seo ◽  
Tae-Yeon Seong ◽  
Jin Hyuck Heo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Performance ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Flat Surfaces ◽  
Ito Electrode ◽  
Higher Power ◽  
Atomically Flat

Flexible perovskite solar cells with an ion plated ITO electrode showed a higher power conversion efficiency and better flexibility than sputtered ITO-based perovskite solar cells.

High-performance flexible and air-stable perovskite solar cells with a large active area based on poly(3-hexylthiophene) nanofibrils

2016 ◽  
Vol 4 (29) ◽  
pp. 11307-11316 ◽  
Author(s):  
Minwoo Park ◽  
Joon-Suh Park ◽  
Il Ki Han ◽  
Jin Young Oh
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Performance ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Active Area ◽  
Hole Transporting ◽  
Large Active Area

By incorporating long P3HT nanofibrils as a hole transporting layer, high-performance, air-stable and flexible perovskite solar cells with a large active area (1 cm2) have been realized with an excellent power conversion efficiency of 13.12%.

scholarly journals Effect of guanidinium chloride in eliminating O2− electron extraction barrier on a SnO2 surface to enhance the efficiency of perovskite solar cells

RSC Advances ◽  
2020 ◽  
Vol 10 (33) ◽  
pp. 19513-19520 ◽  
Author(s):  
Miao Yu ◽  
Lijia Chen ◽  
Guannan Li ◽  
Cunyun Xu ◽  
Chuanyao Luo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Power Conversion Efficiency ◽  
Fill Factor ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Oxygen Species ◽  
Guanidinium Chloride ◽  
Adsorbed Oxygen Species ◽  
Electron Extraction

The charge transfer hindrance of adsorbed oxygen species on SnO2 is successfully reduced by modifying it with guanidinium chloride, improving the power conversion efficiency from 15.33% to 18.46% (after modification) with maximum fill factor of 80%.

scholarly journals Enhancing the efficiency of planar heterojunction perovskite solar cells via interfacial engineering with 3-aminopropyl trimethoxy silane hydrolysate

2017 ◽  
Vol 4 (12) ◽  
pp. 170980 ◽  
Author(s):  
Ya-Qiong Wang ◽  
Shou-Bin Xu ◽  
Jian-Guo Deng ◽  
Li-Zhen Gao
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Fill Factor ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Interfacial Engineering ◽  
Interfacial Compatibility ◽  
Planar Heterojunction ◽  
Trimethoxy Silane

The interfacial compatibility between compact TiO 2 and perovskite layers is critical for the performance of planar heterojunction perovskite solar cells (PSCs). A compact TiO 2 film employed as an electron-transport layer (ETL) was modified using 3-aminopropyl trimethoxy silane (APMS) hydrolysate. The power conversion efficiency (PCE) of PSCs composed of an APMS-hydrolysate-modified TiO 2 layer increased from 13.45 to 15.79%, which was associated with a significant enhancement in the fill factor (FF) from 62.23 to 68.04%. The results indicate that APMS hydrolysate can enhance the wettability of γ-butyrolactone (GBL) on the TiO 2 surface, form a perfect CH 3 NH 3 PbI 3 film, and increase the recombination resistance at the interface. This work demonstrates a simple but efficient method to improve the TiO 2 /perovskite interface that can be greatly beneficial for developing high-performance PSCs.

Surface treatment via Li-bis-(trifluoromethanesulfonyl) imide to eliminate the hysteresis and enhance the efficiency of inverted perovskite solar cells

2017 ◽  
Vol 5 (39) ◽  
pp. 10280-10287 ◽  
Author(s):  
Cong Chen ◽  
Guang Yang ◽  
Junjie Ma ◽  
Xiaolu Zheng ◽  
Zhiliang Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Surface Treatment ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Long Term Stability

We showed that perovskite solar cells employing Li-treated NiOxas a hole transport layer demonstrated excellent photovoltaic performance, and obtained a power conversion efficiency of up to 18.03%. In addition, the device possessed good long-term stability.

Chlorine-doped SnO2 hydrophobic surfaces for large grain perovskite solar cells

2020 ◽  
Vol 8 (33) ◽  
pp. 11638-11646 ◽  
Author(s):  
Wenxiao Gong ◽  
Heng Guo ◽  
Haiyan Zhang ◽  
Jian Yang ◽  
Haiyuan Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Tin Oxide ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Higher Power

Both wetting and non-wetting tin oxide SnO2 were spin-coated and the non-wetting electron transport layer demonstrated a larger perovskite and higher power conversion efficiency.

Sign in / Sign up

Export Citation Format

Share Document